Commercially Pure Titanium Grade 4

General Characteristics of CP Titanium Grade 4

CP titanium Grade 4 provides corrosion resistance, strength and fatigue characteristics that compare favorably to those of nickel and steel alloys. The strongest grade of unalloyed grades 1, 2, 3 and 4, this is a commercially pure, moderately formable alloy with good ductility.

Chemical Composition of CP Titanium Grade 4

Carbon 0.080 max

Nitrogen 0.050 max

Oxygen 0.40 max

Iron 0.50 max

Hydrogen 0.015 max

Other, 0.3 max per AMS 4921 G or 0.40 max per ASTM B 348-99

Titanium balance

Heat Treatment of CP Titanium Grade 4

Anneal

Holding at 1103° to 1301F (595° to 705°C) for two hours

Air cool

Stress relive by holding at 1004° to 1103°F (540° to 595°C)for 15 to 30 minutes